Compact disc storage unit



FIG. 1 is a front elevational view of a compact disc storage unit showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view, the bottom plan view being identical thereto; and

FIG. 4 is a side elevational view, the opposite side being identical thereto.

The broken line showing of discs in FIGS. 1 and 4 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a compact disc storage unit, as shown and described. 